CN1542222A - Papermaking needle felt - Google Patents
Papermaking needle felt Download PDFInfo
- Publication number
- CN1542222A CN1542222A CNA2004100334812A CN200410033481A CN1542222A CN 1542222 A CN1542222 A CN 1542222A CN A2004100334812 A CNA2004100334812 A CN A2004100334812A CN 200410033481 A CN200410033481 A CN 200410033481A CN 1542222 A CN1542222 A CN 1542222A
- Authority
- CN
- China
- Prior art keywords
- papermaking
- felt
- weight
- hydrophilic
- woollen blanket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 21
- 229920001225 polyester resin Polymers 0.000 claims description 21
- 239000004645 polyester resin Substances 0.000 claims description 21
- 229920005749 polyurethane resin Polymers 0.000 claims description 21
- CCJAYIGMMRQRAO-UHFFFAOYSA-N 2-[4-[(2-hydroxyphenyl)methylideneamino]butyliminomethyl]phenol Chemical compound OC1=CC=CC=C1C=NCCCCN=CC1=CC=CC=C1O CCJAYIGMMRQRAO-UHFFFAOYSA-N 0.000 claims description 18
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 16
- 239000000834 fixative Substances 0.000 claims description 8
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 52
- 230000006835 compression Effects 0.000 abstract description 20
- 238000007906 compression Methods 0.000 abstract description 20
- 230000003373 anti-fouling effect Effects 0.000 abstract description 13
- 239000000356 contaminant Substances 0.000 abstract description 8
- 229920002803 thermoplastic polyurethane Polymers 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 31
- 239000000835 fiber Substances 0.000 description 28
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical compound NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 25
- 239000012948 isocyanate Substances 0.000 description 18
- 150000001875 compounds Chemical class 0.000 description 17
- 150000002513 isocyanates Chemical class 0.000 description 17
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 16
- 239000004952 Polyamide Substances 0.000 description 14
- 229920002647 polyamide Polymers 0.000 description 14
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 13
- 238000000034 method Methods 0.000 description 13
- 239000002519 antifouling agent Substances 0.000 description 11
- 239000002689 soil Substances 0.000 description 11
- 230000010148 water-pollination Effects 0.000 description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical class OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- 229910052739 hydrogen Inorganic materials 0.000 description 10
- 239000001257 hydrogen Substances 0.000 description 10
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 10
- 239000007788 liquid Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 238000001704 evaporation Methods 0.000 description 8
- 230000008020 evaporation Effects 0.000 description 8
- 230000035699 permeability Effects 0.000 description 8
- 239000000470 constituent Substances 0.000 description 7
- 230000008929 regeneration Effects 0.000 description 7
- 238000011069 regeneration method Methods 0.000 description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 6
- -1 poly(ethylene oxide) Polymers 0.000 description 6
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000011109 contamination Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229920001778 nylon Polymers 0.000 description 5
- 239000005056 polyisocyanate Substances 0.000 description 5
- 229920001228 polyisocyanate Polymers 0.000 description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 4
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 229920005862 polyol Polymers 0.000 description 4
- 150000003077 polyols Chemical class 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229920001187 thermosetting polymer Polymers 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000001467 acupuncture Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- NNOZGCICXAYKLW-UHFFFAOYSA-N 1,2-bis(2-isocyanatopropan-2-yl)benzene Chemical compound O=C=NC(C)(C)C1=CC=CC=C1C(C)(C)N=C=O NNOZGCICXAYKLW-UHFFFAOYSA-N 0.000 description 2
- JECYNCQXXKQDJN-UHFFFAOYSA-N 2-(2-methylhexan-2-yloxymethyl)oxirane Chemical group CCCCC(C)(C)OCC1CO1 JECYNCQXXKQDJN-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000012644 addition polymerization Methods 0.000 description 2
- 125000002723 alicyclic group Chemical group 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 125000001118 alkylidene group Chemical group 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010494 dissociation reaction Methods 0.000 description 2
- 230000005593 dissociations Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006068 polycondensation reaction Methods 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 2
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 2
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000006277 sulfonation reaction Methods 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 235000012222 talc Nutrition 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 150000002924 oxiranes Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007348 radical reaction Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229940079827 sodium hydrogen sulfite Drugs 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/08—Felts
- D21F7/083—Multi-layer felts
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/0027—Screen-cloths
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/08—Felts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S162/00—Paper making and fiber liberation
- Y10S162/90—Papermaking press felts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2484—Coating or impregnation is water absorbency-increasing or hydrophilicity-increasing or hydrophilicity-imparting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/50—FELT FABRIC
Landscapes
- Paper (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Abstract
Papermaking felt containing a hydrophilic urethane resin that can maintain functions such as water drainage, wet-paper smoothness, and wet-paper transportability by imparting a hydrophilic property to the papermaking felt thereby preventing the deposition and accumulation of adhesive contaminants without impairing the compression recoverability of the felt thus sustaining its antifouling capability.
Description
Technical field
The present invention relates to a kind of woollen blanket that in the extrusion element of paper machine, uses, particularly a kind of felt for papermaking with soil resistance.
Background technology
In dewatered paper machine from paper material, make it slough moisture by continuous 3 main elements: shaping, extruding, drying.Normally used papermaking apparatus has corresponding dehydrating function in each element.The felt for papermaking that uses in extrusion element constitutes by the following method: going up the lamination short fiber layers at substrate (mainly being fabric) (mainly is 2～50dtex), then by flocking such as acupuncture perforation.
The basic function of felt for papermaking is water to be extruded (water squeezing) from l Water Paper, improves the flatness (flatness) of l Water Paper, conveyance l Water Paper (conveying wet web), and in the function of felt for papermaking, particularly the function of water squeezing comes into one's own from l Water Paper.This functional requirement is when passing through between a pair of compression roller, utilize pressurization to make water from l Water Paper, transfer in the woollen blanket, by the water in the suction box absorption woollen blanket of pressurization or paper machine, water is discharged to outside the woollen blanket thus, makes the water permeability of woollen blanket and the restorative maintenance of compression continuous.
Consider from the angle of environmental protection, make old paper carry out recycling recently, increase the ratio of recycle feed, but polluter that comprises in the recycle feed or filler can accumulate in the papermaking apparatus, and cause various faults thus with respect to paper material.Particularly the felt for papermaking of compact texture stockpiles polluter or filler easily, because these materials stockpile in woollen blanket between the operating period, and the water permeability of woollen blanket and the restorative reduction of compression, thereby water squeezing or l Water Paper flatness are reduced significantly.
Pollute in order to solve such woollen blanket, take in the paper machine running, woollen blanket to be applied the method for high pressure washing usually, perhaps stop the method that paper machine utilizes remover to make it to clean.But because described method makes the staple fibre of woollen blanket produce physical injury, remover makes it to produce the chemical deterioration, and staple fibre comes off and is attached to paper, quickens the flattening of staple fibre, thereby the woollen blanket function is reduced, and is unfavorable for the production utilization of paper machine.
As a kind of method of dealing with problems, there is motion to propose the papermaking apparatus that uses in paper machine is coated, in order to prevent adhering to of polluter.The method that coats as antifouling composition with fluoride (for example with reference to patent documentation 1,2) for example.But when carrying out the coating of fluoride, because woollen blanket has hydrophobicity, hindered water from the transfer of l Water Paper to woollen blanket, caused the connecting airtight property reduction of l Water Paper and woollen blanket, when the conveyance l Water Paper, l Water Paper comes off.
Prevent that method that the cementability material adheres to from having the method (for example with reference to patent documentation 3,4,5) of using the antifouling composition of hydrophily that contains polyvinylpyrrolidone compound or hydrophilic polyester etc. in the antifouling composition to coat.But under the situation that only coats the antifouling compositions of hydrophily such as polyvinylpyrrolidone compound or hydrophilic polyester, in the felt that the paper machine extrusion element uses, when water sees through woollen blanket, the complete stripping of the antifouling composition of hydrophily, owing to utilize 1 pair of compression roller to pressurize repeatedly, phase mutual friction between the staple fibre in the woollen blanket, the antifouling composition of hydrophily is removed, and is difficult to continue effectively to use.
Hybrid thermosetting resin in the antifouling composition of hydrophily, then the coating, drying, form the hydrophilic resin coating, under the situation that improves continuation, coating by thermosetting resin makes the staple fibre hardening in the woollen blanket, perhaps make between the staple fibre fasteningly by thermosetting resin, woollen blanket is hardening thus, and causes compressing restorative reduction.In this case, because the restorative reduction of compression of woollen blanket, current die down in the woollen blanket that compression recovers, and the current in the woollen blanket are discharged to deleterious outside the woollen blanket system with polluter, and have therefore quickened accumulating of polluter.
And because thermosetting resin is generally hydrophobicity, and hydrophily is low, thereby must use hydrophilic antifouling composition in a large number.
In addition, in order to realize improving the purpose of papermaking apparatus function, the method for using polyurethane resin is arranged.For example when being used for the dry canvas of dry element, make size stability, mobile stability and ABRASION RESISTANCE be improved (referring to Patent Document 6); Perhaps when being used for grinding, can make its ability with good maintenance polishing particles with the acupuncture woollen blanket, improve with by the connecting airtight property of abradant surface, thereby can improve the quality (with reference to patent documentation 7) of grinding efficiency and abradant surface.But, can not improve restorative, hydrophily of compression and water permeability as mentioned above, in extrusion element, use polyurethane resin can not improve the function of papermaking apparatus.
As mentioned above, wish a kind of proper device of exploitation, this matching requirements has the basic function that keeps felt for papermaking, particularly has functions such as the desired water squeezing of crimping section, l Water Paper flatness, conveying wet web, still has soil resistance simultaneously during during use latter stage.
Patent documentation 1 spy opens flat 10-245788 communique
Patent documentation 2 spies open flat 6-65886 communique
No. 2976152 communique of patent documentation 3 special permissions
Patent documentation 4 spies open flat 9-105094 communique
Patent documentation 5 spies open the 2002-173886 communique
Patent documentation 6 special public clear 55-33811 communiques
No. 2673558 communique of patent documentation 7 special permissions
Summary of the invention
Therefore, the objective of the invention is to, make the constituent polyamide fiber possess hydrophilic property of felt for papermaking, the polluter that prevents adherence (mainly being hydrophobicity) adheres to and accumulates, and the compressibility that does not hinder felt for papermaking, have soil resistance for a long time, still have functions such as the water squeezing of keeping, l Water Paper flatness, conveying wet web the latter stage between the operating period up to woollen blanket.
The present inventor has carried out deep repeatedly research to aforesaid problem, found that hydrophilic polyurethane resin is effective, and further research again is until finishing the present invention.
Just the present invention relates to contain the felt for papermaking of hydrophilic polyurethane resin.
The present invention relates to aforementioned felt for papermaking, it is characterized in that, described hydrophilic polyurethane resin obtains by polymerization hydrophilic amino formate-blocked prepolymer.
The present invention relates to aforementioned felt for papermaking, it is characterized in that, contain oxirane in the described hydrophilic amino formate-blocked prepolymer.
The present invention relates to aforementioned felt for papermaking, it is characterized in that, oxirane accounts for 35%～95% in the molecular weight of hydrophilic amino formate-blocked prepolymer.
The present invention relates to aforementioned felt for papermaking, it is characterized in that, relative felt for papermaking weight, described hydrophilic polyurethane resin is 0.5～10 weight %.
The present invention relates to aforementioned felt for papermaking, it is characterized in that also containing fixative.
The present invention relates to aforementioned felt for papermaking, it is characterized in that, fixative is a N hydroxymethyl acrylamide.
The present invention relates to aforementioned felt for papermaking, it is characterized in that, relative felt for papermaking weight, described hydrophilic polyurethane resin is 0.5～10 weight %, and N hydroxymethyl acrylamide is 0.1～5 weight %.
The present invention relates to aforementioned felt for papermaking, it is characterized in that also containing the hydrophilic polyester resin.
The present invention relates to aforementioned felt for papermaking, it is characterized in that, the relative felt for papermaking weight of described hydrophilic polyurethane resin is 0.5～10 weight %, and N hydroxymethyl acrylamide is 0.1～5 weight %, and described hydrophilic polyester resin is 0.5～5 weight %.
Description of drawings
Fig. 1 shows the schematic representation of apparatus that woollen blanket F is applied specific tension force and woollen blanket F rotation is pushed repeatedly by a pair of compression roller P.
F: felt
P: compression roller
S: water drenching device
W: water jet
The specific embodiment
In felt for papermaking of the present invention; after carbamate block prepolymer (A) is coated in felt for papermaking as anti-fouling agent; once heat treatment; then the block agent of (A) is dissociated; make isocyanate group regeneration; combine with the molecular end of polyamide fiber, Zai Sheng isocyanate group forms the polyurethane protective film of tridimensional network thus at intermolecular generation self-crosslinking on the polyamide fiber surface simultaneously.(A) polyethylene oxide chain that has in makes woollen blanket fiber surface possess hydrophilic property function, prevents adhering to of pollutant, simultaneously owing to the effect that is the isocyanate group of netted expansion on the polyamide fiber surface, and can the restorative state of long term maintenance high compression.
Therefore, the adhesiveness polluter is difficult to attached to the woollen blanket fiber surface, and the polluter that enters woollen blanket inside is compressing when recovering, utilize the current of woollen blanket inside that it is expelled to outside the woollen blanket system, just utilize the auto purification effect, make it be difficult to stockpile, prevent that polluter from adhering to and accumulating in woollen blanket inside.
Containing under the situation of mixture of forming with hydrophilic amino formic acid block prepolymer (A) and N hydroxymethyl acrylamide (B) as the felt for papermaking of anti-fouling agent, before (A) thermal dissociation, (B) methylol and polyamide fiber generation chemical bonding as the constituent of felt for papermaking are that glycerol polymerization takes place exactly.This grafting bonding chain has the basal point that makes (A) fixing, just as the function of fixative.
Thereby with (A) with after the mixture that (B) constitutes is coated on the felt for papermaking as anti-fouling agent, once heat treatment, methylol (B) adds grafting bonding chain prior to (A) on the polyamide fiber as the constituent of felt for papermaking.The block agent of (A) is dissociated then, and isocyanate group regeneration reacts between functional group's vinyl of (B) simultaneously immediately, forms macromolecule.That is to say, (B) make a concerted effort with the chemical bond of polyamide fiber, improved the lasting soil resistance of (A) composition by strengthening (A) indirectly.
Among the present invention; containing under the situation of mixture that constitutes with hydrophilic amino formic acid block prepolymer (A) and hydrophilic polyester resin (C) as the felt for papermaking of anti-fouling agent; after will being coated on the felt for papermaking as anti-fouling agent with (A) and the mixture that (C) constitutes; by heat treatment; the block agent is dissociated; isocyanate group regeneration; when the molecular end base key with polyamide fiber closes; intermolecular self-crosslinking takes place in the isocyanate group of regeneration, forms the polyurethane protective film of tridimensional network on the polyamide fiber surface.The isocyanate group that has in (A) is netted expansion then, (C) is added to its internal fixation, and the hydrophily function of woollen blanket fiber surface is improved, and further prevents adhering to of polluter.
Containing under the situation of mixture that constitutes with hydrophilic amino formic acid block prepolymer (A), hydrophilic polyester resin (C) and N hydroxymethyl acrylamide (B) as the felt for papermaking of anti-fouling agent, (B) methylol has chemical bonding to the polyamide fiber as the constituent of felt for papermaking, makes it that glycerol polymerization takes place in detail.This grafting bonding chain has makes (A) and (C) fixing basal point, the i.e. function of so-called fixative.
Therefore, be coated in after the felt for papermaking as anti-fouling agent with (A), (C) and the mixture that (B) constitutes, by heat treatment, the methylol of preferred (B) adds grafting bonding chain on as the constituent polyamide fiber of felt for papermaking.Then, block agent (A) is dissociated, and isocyanate group regeneration is reacted between functional group's vinyl of (B) simultaneously immediately, forms macromolecule.
And, because the isocyanate group that (A) is had is netted expansion, (C) enter its internal fixation, the hydrophily function of woollen blanket fiber surface is improved, this works utilizes the function of fixative that (A) and antifouling continuation (C) are improved simultaneously.
Below embodiment of the present invention are described.
The hydrophilic polyurethane resin that uses among the present invention be a kind of typical in aliphatic or alicyclic polymeric isocyanate addition polymerization have the compound R of hydrophilizing agent
1And the compound represented of available formula I,
In the formula:
R
1For having the polyol component of hydrophilic groups such as oxirane,
R
2Be (CH
2)
n, for example C
6H
12Deng aliphatic group, perhaps with the alicyclic group of following formula:
X is 3～300 integer.
A kind of embodiment of this hydrophilic polyurethane resin utilizes hydrophilic amino formate-blocked prepolymer (A) synthetic, and this hydrophilic amino formate-blocked prepolymer (A) be by with sodium hydrogensulfite with and/or the block organic matter handle the carbamate prepolymer contain oxirane and to have an active isocyanate base and obtain, at this, in (A) molecular weight (A) own, it has 35%～95% oxirane, and, in felt for papermaking, comprise (A) of 0.5～10 weight % as water evaporation residue composition with respect to felt for papermaking weight, hydrophilic polyurethane resin just.
In other embodiments, contain (A) and fixative N hydroxymethyl acrylamide (B) in the structure of felt for papermaking, relative felt for papermaking weight, as (A) of water evaporation residue composition, be that the content of hydrophilic polyurethane resin is 0.5～10 weight %, and content (B) is 0.1～5 weight %.
In the other embodiment, contain (A) and hydrophilic polyester resin (C) in the structure of felt for papermaking, relative felt for papermaking weight, (A) as water evaporation residue composition, the content that is hydrophilic polyurethane resin is 0.5～10 weight %, and content (C) is 0.5～5 weight %.
In the other embodiment, in the formation of felt for papermaking, contain (A), (B), (C), relative felt for papermaking weight, (A) as water evaporation residue composition, the content that is hydrophilic polyurethane resin is 0.5～10 weight %, and content (B) is 0.1～5 weight %, and content (C) is 0.5～5 weight %.
The other embodiment of described hydrophilic polyurethane resin be utilize contain oxirane and to have a hydrophilic amino formate-blocked prepolymer (A) of active isocyanate base synthetic.At this, the number of the active isocyanate base of per 1 molecule hydrophilic ammonia carbamate prepolymer, promptly the average functional group number of hydrophilic ammonia carbamate prepolymer is preferably 1～3.
The molecular weight of preferred hydrophilic carbamate block prepolymer (A) has 35%～95% oxirane.
Embodiment to hydrophilic amino formate-blocked prepolymer is described in detail below.
The hydrophilic amino formate-blocked prepolymer (A) that the present invention uses is to utilize bisulfites and/or the agent of organic system block to carry out the block processing to containing the carbamate prepolymer that contains 1～3 active isocyanate base in oxirane and per 1 molecule, by heat treatment the block agent is dissociated, the regeneration of active isocyanate base forms urethane resin-coated by cross-linking reaction.
In its synthetic method, adopting arbitrarily, ratio is reacted compound and organic polyisocyanate with 1 above reactive hydrogen base, formation contains the hydrophilic amino formic acid prepolymer of oxirane and active isocyanate base, adds the block agent of thermal dissociation.
At this moment the compound with reactive hydrogen base of Shi Yonging can be the compound between 0～100 weight % for the content of oxirane in per 1 molecule.As the prepolymer composition, also can use have a plurality of ethylene oxide contents different to have compound bearing active hydrogen simultaneously.
Have this compound bearing active hydrogen and also can use the different compound of a plurality of reactive hydrogen numbers simultaneously.
Compound with active hydrogen group for example has following material.
The compound that contains 1 reactive hydrogen base for example has the compound behind the addition polymerization epoxides in alkylol.
The compound that contains 2 above reactive hydrogen bases for example has polyether polyol, polyester polyol, polyester polyether polyalcohol.
Organic polyisocyanate compounds for example has: toluene di-isocyanate(TDI) (TDI), methyl diphenylene diisocyanate (p-MDI), with polyisocyanate polymethyl-benzene base ester be the aqueous MDI of representative, thick MDI, hexamethylene diisocyanate (HMDI), xylene diisocyanate (XDI), tetramethyl xylylene diisocyanate (TMXDI), hydrogenation methyl diphenylene diisocyanate (
12H-MDI), isophorone diisocyanate (IPDI) etc.
In described formation unit, make to have 1 above compound bearing active hydrogen and polyol component and organic polyisocyanate and react, obtain containing the hydrophilic ammonia carbamate prepolymer of oxirane and active isocyanate base.
That at this moment uses has compound bearing active hydrogen and can select arbitrarily as previously mentioned, and making the active isocyanate radix amount of hydrophilic ammonia carbamate prepolymer in the mol ratio (mol ratio of reactive hydrogen base/NCO base) of polyol component and organic polyisocyanate or 1 molecule is 1～3.
Make the hydrophilic ammonia carbamate prepolymer and the block agent reaction that contain the active isocyanate base, form the block thing.
He Cheng hydrophilic amino formate-blocked prepolymer is the heat reactivity hydrophilic amino formic acid composition with stable water soluble like this, by being heated to 100～180 ℃, the block agent is dissociated, isocyanate group regeneration, the isocyanates radical reaction forms macromolecule then.
From hydrophily and the restorative consideration of compression, in the molecular weight of hydrophilic amino formate-blocked prepolymer (A), the amount of oxirane is preferably more than 35%, and preferred below 95% from the consideration of durability.
Consider from hindering the restorative and water squeezing performance of compression in addition, the suitable containing ratio of hydrophilic amino formate-blocked prepolymer (A), the weight of felt for papermaking relatively is as (A) of water evaporation residue, be that hydrophilic polyurethane resin is 0.5～10 weight %.
Here, N hydroxymethyl acrylamide (B) is 2 monomers, promptly, a kind of methylol (CH that contains condensation
2OH) and the vinyl (CH of polymerism
2=CH-) and have very strong reactive organic compound (formula (1)).
CH
2＝CH-CONH-CH
2OH????????(1)
In addition, consider that from compressing restorative viewpoint the weight of the relative felt for papermaking of containing ratio of N hydroxymethyl acrylamide (B) is preferably 0.5～10 weight %.
Hydrophilic polyester resin (C) is the hydrophilic polyester resin (formula (2)) that contains the poly(ethylene oxide) base,
In the formula: x is 8～200 integer, and y is 3～30 integer, and R is the alkylidene that contains carbon number 2～6.
The preferred example of hydrophilic polyester resin of the present invention (C) is the hydrophilic polyester resin (formula (3)) that the terephthalic acid (TPA) by polycondensation sulfonation terephthalic acid (TPA) and poly(ethylene oxide) addition obtains,
X, z are 8～200 integer in the formula, and y is 3～30 integer, and R is the alkylidene that contains carbon number 2～6.
The purposes of this hydrophilic polyester resin (C) is by polyamide fiber directly being applied, can making its performance SR (antifouling agent).But, can not keep special formation of the present invention and function for a long time.
The relative felt for papermaking weight of the suitable containing ratio of hydrophilic polyester resin (C) is 0.5～5 weight %.Consider from the anti-fouling effect of woollen blanket, more than the preferred 0.5 weight %, and consider below the preferred 5 weight % from the water squeezing performance.
The hydrophilic amino formate-blocked prepolymer (A) that independent interpolation so obtains in felt for papermaking; Perhaps add by hydrophilic amino formate-blocked prepolymer (A) and the above mixture that forms of 2 components in N hydroxymethyl acrylamide (B) and the hydrophilic polyester resin (C) as neccessary composition, under 100～180 ℃, heat-treat, itself and polyamide as the constituent of felt for papermaking are reacted, can obtain having the felt for papermaking of soil resistance.
In felt for papermaking, add above-mentioned antifouling composition, can adopt methods such as dipping, sprinkling, coating to carry out.
Below embodiments of the invention are described, purpose is in order more easily to understand the present invention, to the invention is not restricted to this.
Embodiment
In order to confirm the effect of paper grade (stock) extruding woollen blanket involved in the present invention, carry out following test.
Because each condition is all identical in embodiment, the comparative example, the basic structure of all woollen blankets is set as follows.
Substrate (plain weave is made in the twisted filament of nylon monofilament): Unit Weight 650g/m
2
Short fiber layers (nylon 6 staple fibres): Unit Weight 750g/m
2
Total Unit Weight 1400g/m
2
Needling density: 700 times/cm
2
Embodiment 1～7
It is 30% block isocyanates (whole relatively molecular weight oxirane (EO)=56%) aqueous solution that hydrophilic amino formic acid block prepolymer (A) is to use resinous principle, this aqueous solution obtains by the following method: form and add solution of sodium bisulfite in the carbamate prepolymer with 3.1% active isocyanate base to interpolation hexamethylene diisocyanate in oxirane additive and ethylene oxide/propylene oxide (50: 50) additive.
N hydroxymethyl acrylamide (B) uses commercially available product.
Hydrophilic polyester resin (C) is to carry out polycondensation by the terephthalic acid (TPA) that makes sulfonation terephthalic acid (TPA) and poly(ethylene oxide) addition to obtain.
Disperse independent hydrophilic amino formic acid block prepolymer (A), perhaps use as the hydrophilic amino formic acid block prepolymer (A) of neccessary composition and the component in N hydroxymethyl acrylamide (B) and the hydrophilic polyester resin (C), form the above mixture of 2 components, make relative felt for papermaking weight as shown in table 1 as the part by weight of water evaporation residue component, after the drying, heat-treat at 160 ℃, make itself and polyamide fiber carry out chemical reaction, obtain having the felt for papermaking of soil resistance as the constituent of felt for papermaking.
Embodiment 8
Disperseing resinous principle as hydrophilic amino formic acid block prepolymer (A) on the woollen blanket of basic comprising is 30% block isocyanates (whole relatively molecular weight oxirane (EO)=30%) aqueous solution, this aqueous solution obtains by the following method: form and have in the carbamate prepolymer of 2.7% active isocyanate base and add solution of sodium bisulfite to add hexamethylene diisocyanate in oxirane additive and ethylene oxide/propylene oxide (80: 20) additive; Make relative felt for papermaking weight as shown in table 1 as the part by weight of water evaporation residue component, heat-treat at 160 ℃ dry back, obtains felt for papermaking.
Embodiment 9
Disperseing resinous principle as hydrophilic amino formic acid block prepolymer (A) on the woollen blanket of basic comprising is 30% block isocyanates (whole relatively molecular weight oxirane (EO)=93%) aqueous solution, this aqueous solution obtains by the following method: add hexamethylene diisocyanate and form and have in the carbamate prepolymer of 1.5% active isocyanate base and add solution of sodium bisulfite in the oxirane additive at methyl blocking; Make relative felt for papermaking weight as shown in table 1 as the part by weight of water evaporation residue component, heat-treat at 160 ℃ dry back, obtains felt for papermaking.
Comparative example 1
For the woollen blanket of basic comprising, heat-treat at 160 ℃, obtain felt for papermaking.
Comparative example 2
On the woollen blanket of basic comprising, disperse the hydrophilic polyester resin (C) identical, make that the part by weight of relative felt for papermaking weight is as shown in table 1, after the drying, heat-treat, obtain felt for papermaking at 160 ℃ with embodiment.
Prepare after the above felt for papermaking, utilize device shown in Figure 1 to experimentize.The experimental provision of Fig. 1 is to utilize a pair of pressure roller P that woollen blanket F is applied certain force of strain and make woollen blanket F rotation and carry out punching press repeatedly.Artificial contamination's liquid that water that water jet W provides or water drenching device S are provided disperses, and estimates the soil resistance of woollen blanket.
Artificial contamination's liquid is prepared as follows: dry as the resin system dirt, be deposited on pulp resin (pulp pitch) solids on the suction box scraper of the press section office that is arranged on newspaper manufacturing process, resin solid thing with respect to 100 parts extracts with 1: 1 mixed solvent of 1 part of ethanol/benzene afterwards, extract (supernatant) is diluted with 100 parts water in the limit, and turbid liquid (artificial contamination's liquid) is made with pressure-even pulp crusher in the limit.Represent the contaminant capacity that this artificial contamination's liquid produces with contaminant capacity 1.
As filler is dirt, and aluminum sulfate is dissolved in 2% the talcum turbid liquid, adjusts to pH=5, utilizes spray to disperse this turbid liquid, estimates the soil resistance of woollen blanket.Represent the contaminant capacity that this artificial contamination's liquid produces with contaminant capacity 2.
At this, utilize the restorative and continuation of compression of the woollen blanket of experimental provision comparing embodiment 1～9 shown in Figure 1, comparative example 1～2.
The drive condition of experimental provision is: squeeze pressure 100kg/cm
2, the woollen blanket actuating speed is the 1000m/ branch, continued to carry out 120 hours.
When measuring, the numerical value when numerical value when requiring to try to achieve respectively experiment and just having begun and experiment finish.Try to achieve in water and apply specified pressure (30kg/cm on the woollen blanket of dipping after 1 hour
2) time thickness, utilize following formula to try to achieve compression ratio, recovery rate then.
Thickness before compression ratio (%)=100 * (thickness after the thickness-pressurization before the pressurization)/pressurization
Thickness after recovery rate (%)=100 * (thickness after post-decompression thickness-pressurization)/pressurization
The woollen blanket of dipping after 1 hour in the water applied loading, measure water from the woollen blanket surface time when the inside sees through 30 liters, the time during with comparative example 1 new product is as 100, the relative evaluation water permeability.
(water permeability: the time (during new product) * 100 that sees through that sees through time/comparative example 1 of sample)
The weight of the woollen blanket that each artificial contaminated liquid of contaminant capacity 1,2 expressions is polluted increases ratio.
The experimental result of above-mentioned project is shown in table 2.
As mentioned above, show that in the structure of felt for papermaking of the present invention contain carbamate block prepolymer (A) anti-fouling agent by making it, it is restorative to have high compression as shown in table 2, the woollen blanket fiber surface is had hydrophile function, can obtain good soil resistance.
And, by containing the anti-fouling agent that carbamate block prepolymer (A) and N hydroxymethyl acrylamide (B) fit in 2 component mixtures, improve the continuation of soil resistance in (A) composition.
Moreover, by containing the anti-fouling agent that carbamate block prepolymer (A) and hydrophilic polyester resin (C) fit in 2 component mixtures, further improve hydrophilicity to the woollen blanket fiber surface, obtain good soil resistance.
Carbamate block prepolymer (A) makes nylon fiber surface possess hydrophilic property, the polluter that prevents woollen blanket spacing system etc. adheres to, restorative by the compression that improves felt simultaneously, filler dirts such as the talcum that accumulates in woollen blanket inside or sulfuric acid alumina are got rid of effectively.
In addition,, further improve the hydrophily on nylon fiber surface, particularly can prevent polluter adhering to such as resin system dirt on the nylon fiber surface by adding hydrophilic polyester resin (C).
N hydroxymethyl acrylamide (B) forms substrate (wedge) by reacting with nylon fiber, improves the continuation of above-mentioned characteristic.
For the adhesion amount of carbamate block prepolymer (A), N hydroxymethyl acrylamide (B), hydrophilic polyester resin (C), can make it have different characteristics respectively by increasing the adhesion amount increase.At adhesion amount for a long time, obturation between fiber takes place, water permeability deterioration etc.In the scope that does not hinder the woollen blanket rerum natura, can be according to the polluter composition by changing the cooperation ratio of carbamate block prepolymer (A), N hydroxymethyl acrylamide (B), hydrophilic polyester resin (C), cooperate the above mixture of 2 components, further obtain good anti-fouling effect.
Table 1
| ????A | ????B | ????C | |
| Embodiment 1 | ????1％ | ????0％ | ????0％ |
| Embodiment 2 | ????5％ | ????0％ | ????0％ |
| Embodiment 3 | ????10％ | ????0％ | ????0％ |
| Embodiment 4 | ????1％ | ????0.5％ | ????0％ |
| Embodiment 5 | ????1％ | ????0％ | ????1％ |
| Embodiment 6 | ????5％ | ????0.5％ | ????3％ |
| Embodiment 7 | ????1％ | ????10％ | ????0％ |
| Embodiment 8 | ????5％ | ????0％ | ????0％ |
| Embodiment 9 | ????5％ | ????0％ | ????0％ |
| Comparative example 1 | ????0％ | ????0％ | ????0％ |
| Comparative example 2 | ????0％ | ????0％ | ????3％ |
Table 2
| Rerum natura during new product | Rerum natura after the test | |||||||
| Compression ratio | Recovery rate | Water permeability | Compression ratio | Recovery rate | Water permeability | Amount of contaminants 1 | Amount of contaminants 2 | |
| Embodiment 1 | ?48 | ?53 | ??103 | ??35 | ??32 | ??140 | ?0.72 | ??1.78 |
| Embodiment 2 | ?56 | ?61 | ??109 | ??40 | ??36 | ??131 | ?0.42 | ??1.13 |
| Embodiment 3 | ?56 | ?62 | ??115 | ??40 | ??36 | ??127 | ?0.41 | ??0.86 |
| Embodiment 4 | ?50 | ?53 | ??104 | ??38 | ??35 | ??138 | ?0.5 | ??1.5 |
| Embodiment 5 | ?48 | ?51 | ??105 | ??36 | ??33 | ??139 | ?0.65 | ??1.71 |
| Embodiment 6 | ?55 | ?61 | ??111 | ??43 | ??40 | ??124 | ?0.3 | ??0.84 |
| Embodiment 7 | ?43 | ?45 | ??110 | ??33 | ??29 | ??137 | ?0.98 | ??2.04 |
| Embodiment 8 | ?42 | ?45 | ??106 | ??30 | ??27 | ??130 | ?1.32 | ??1.03 |
| Embodiment 9 | ?58 | ?64 | ??115 | ??32 | ??29 | ??142 | ?1.38 | ??1.96 |
| Comparative example 1 | ?44 | ?47 | ??100 | ??32 | ??28 | ??148 | ?1.46 | ??2.47 |
| Comparative example 2 | ?45 | ?48 | ??105 | ??32 | ??28 | ??145 | ?1.41 | ??2.45 |
Claims (10)
1, a kind of felt for papermaking is characterized in that containing hydrophilic polyurethane resin.
2, felt for papermaking as claimed in claim 1 is characterized in that, described hydrophilic polyurethane resin obtains by polymerization hydrophilic amino formate-blocked prepolymer.
3, felt for papermaking as claimed in claim 2 is characterized in that, described hydrophilic amino formate-blocked prepolymer contains oxirane.
4, felt for papermaking as claimed in claim 3 is characterized in that, oxirane accounts for 35%～95% in the molecular weight of hydrophilic amino formate-blocked prepolymer.
5, felt for papermaking as claimed in claim 1 is characterized in that, relative felt for papermaking weight, and described hydrophilic polyurethane resin is 0.5～10 weight %.
6, felt for papermaking as claimed in claim 1 is characterized in that also containing fixative.
7, felt for papermaking as claimed in claim 6 is characterized in that, described fixative is a N hydroxymethyl acrylamide.
8, felt for papermaking as claimed in claim 7 is characterized in that, relative felt for papermaking weight, and described hydrophilic polyurethane resin is 0.5～10 weight %, and N hydroxymethyl acrylamide is 0.1～5 weight %.
9, felt for papermaking as claimed in claim 1 is characterized in that also containing the hydrophilic polyester resin.
10, felt for papermaking as claimed in claim 9, it is characterized in that, relative felt for papermaking weight, described hydrophilic polyurethane resin is 0.5～10 weight %, N hydroxymethyl acrylamide is 0.1～5 weight %, and described hydrophilic polyester resin is 0.5～5 weight %.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003106312 | 2003-04-10 | ||
| JP2003106312A JP4370425B2 (en) | 2003-04-10 | 2003-04-10 | Needle felt for papermaking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1542222A true CN1542222A (en) | 2004-11-03 |
| CN100532711C CN100532711C (en) | 2009-08-26 |
Family
ID=32905973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100334812A Expired - Lifetime CN100532711C (en) | 2003-04-10 | 2004-04-09 | Papermaking needle felt |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US7311806B2 (en) |
| EP (1) | EP1469123B1 (en) |
| JP (1) | JP4370425B2 (en) |
| KR (1) | KR101103972B1 (en) |
| CN (1) | CN100532711C (en) |
| AT (1) | ATE433008T1 (en) |
| CA (1) | CA2460781A1 (en) |
| DE (1) | DE602004021312D1 (en) |
| TW (1) | TW200510517A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107858853A (en) * | 2017-10-31 | 2018-03-30 | 宿迁市神龙家纺有限公司 | One kind water suction felt and preparation method thereof |
| CN116065392A (en) * | 2023-01-07 | 2023-05-05 | 江苏金呢工程织物股份有限公司 | Papermaking blanket capable of improving anti-fouling capability |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006214058A (en) * | 2005-02-07 | 2006-08-17 | Ichikawa Co Ltd | Papermaking transfer felt and press device of papermachine having the papermaking transfer felt |
| US20080092980A1 (en) * | 2005-08-26 | 2008-04-24 | Bryan Wilson | Seam for papermachine clothing |
| JP4793718B2 (en) * | 2005-12-26 | 2011-10-12 | イチカワ株式会社 | Needle felt for papermaking |
| JP4990280B2 (en) * | 2006-07-06 | 2012-08-01 | イチカワ株式会社 | Felt for papermaking |
| JP4477091B1 (en) * | 2009-03-19 | 2010-06-09 | イチカワ株式会社 | Felt for papermaking |
| JP5571404B2 (en) * | 2010-02-09 | 2014-08-13 | 日本フエルト株式会社 | Papermaking felt and manufacturing method thereof, papermaking belt and manufacturing method thereof |
| JP6206040B2 (en) * | 2012-09-27 | 2017-10-04 | 東レ株式会社 | Polyphenylene sulfide fiber for nonwoven fabric |
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| NL135227C (en) * | 1966-11-15 | 1900-01-01 | ||
| JPS53114898A (en) | 1977-03-09 | 1978-10-06 | Shikibo Ltd | Early condensation product of modified epoxy resin and resin processing agent |
| JPS57199873A (en) * | 1981-06-03 | 1982-12-07 | Toray Industries | Treatment of synthetic fiber knitted fabric |
| US4594286A (en) * | 1985-05-07 | 1986-06-10 | Graniteville Company | Coated fabric |
| US4931010A (en) | 1988-10-31 | 1990-06-05 | Albany International Corp. | Fabrics having hydrophilic and hydrophobic foams |
| JP2913710B2 (en) * | 1989-12-22 | 1999-06-28 | 大日本インキ化学工業株式会社 | Aqueous resin dispersion |
| JP2976152B2 (en) | 1991-10-30 | 1999-11-10 | 日本フエルト株式会社 | Papermaking net |
| US5207873A (en) * | 1992-04-17 | 1993-05-04 | Huyck Corporation | Anti-contaminant treatment for papermaking fabrics |
| US5298124A (en) * | 1992-06-11 | 1994-03-29 | Albany International Corp. | Transfer belt in a press nip closed draw transfer |
| SE504975C2 (en) | 1995-09-08 | 1997-06-02 | Albany Int Corp | dryer screen |
| JP3002768B2 (en) | 1995-09-13 | 2000-01-24 | 第一工業製薬株式会社 | Method for producing durable antistatic water-absorbing fiber material |
| JPH09105094A (en) | 1995-10-05 | 1997-04-22 | Nippon Felt Co Ltd | Net for paper making |
| US6284380B1 (en) | 1997-02-25 | 2001-09-04 | Albany International Corp. | Paper machine clothing and a method of coating same |
| FI111471B (en) * | 1999-10-13 | 2003-07-31 | Tamfelt Oyj Abp | Transfer belt for paper machine |
| ATE287471T1 (en) * | 2000-02-23 | 2005-02-15 | Voith Fabrics Patent Gmbh | METHOD FOR PRODUCING A BELT FOR PAPER MACHINES |
| JP2002173886A (en) | 2000-11-30 | 2002-06-21 | Nippon Filcon Co Ltd | Antifouling woven fabric for paper making |
| JP3940328B2 (en) * | 2002-07-05 | 2007-07-04 | 日本フイルコン株式会社 | Anti-fouling paper fabric |
-
2003
- 2003-04-10 JP JP2003106312A patent/JP4370425B2/en not_active Expired - Lifetime
-
2004
- 2004-03-09 TW TW093106237A patent/TW200510517A/en unknown
- 2004-03-12 CA CA 2460781 patent/CA2460781A1/en not_active Abandoned
- 2004-03-15 US US10/800,936 patent/US7311806B2/en active Active
- 2004-03-29 KR KR1020040021301A patent/KR101103972B1/en active IP Right Grant
- 2004-04-03 EP EP20040008161 patent/EP1469123B1/en not_active Expired - Lifetime
- 2004-04-03 DE DE200460021312 patent/DE602004021312D1/en not_active Expired - Lifetime
- 2004-04-03 AT AT04008161T patent/ATE433008T1/en active IP Right Revival
- 2004-04-09 CN CNB2004100334812A patent/CN100532711C/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107858853A (en) * | 2017-10-31 | 2018-03-30 | 宿迁市神龙家纺有限公司 | One kind water suction felt and preparation method thereof |
| CN116065392A (en) * | 2023-01-07 | 2023-05-05 | 江苏金呢工程织物股份有限公司 | Papermaking blanket capable of improving anti-fouling capability |
| CN116065392B (en) * | 2023-01-07 | 2023-08-25 | 江苏金呢工程织物股份有限公司 | Papermaking blanket capable of improving anti-fouling capability |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004308078A (en) | 2004-11-04 |
| CA2460781A1 (en) | 2004-10-10 |
| DE602004021312D1 (en) | 2009-07-16 |
| ATE433008T1 (en) | 2009-06-15 |
| TW200510517A (en) | 2005-03-16 |
| EP1469123A1 (en) | 2004-10-20 |
| CN100532711C (en) | 2009-08-26 |
| US20040200594A1 (en) | 2004-10-14 |
| US7311806B2 (en) | 2007-12-25 |
| KR101103972B1 (en) | 2012-01-06 |
| EP1469123B1 (en) | 2009-06-03 |
| KR20040089479A (en) | 2004-10-21 |
| JP4370425B2 (en) | 2009-11-25 |
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